Railway



(No Model.)

C. E. BAUER.

BOLSTER FOR CARS.

'Patented Novn 16, 1897.

UNTTED STATES 4 PATENT Fries. l

CARL E. BAUER, OF CHICAGO, ILLINOIS, ASSIGrNOR TO TI-IE SIMPLEX RAILWAY APPLIANCE COMPANY, OF SAME PLACE.

BOLSTER FOR CARS.

SPECIFICATION forming part of Letters Patent No. 593,637, dated' November 16, 1897.

Application filed September 3,1897. Serial No. 650,550. (No model.)

To @ZZ wtont it may concern:-

Be it known that I, CARL E. BAUER, a citizen of the United States, residing in Chicago, Cook county, Illinois, have invented certain new and useful Improvements in Bolsters for Cars, of which the following, taken in connection with the accompanying drawings, is a specification.

My invention relates to that type of bolster which is made from commercial rolled forms assembled together and held by rivets or other equivalent means.

For a compression member I employ, preferably, a channel-iron, this being bent or offset at or near its middle point, producing something of a bow shape. The flanges of this channel are preferably turned toward the inside of the bow, and to each of the flanges is riveted an L-piece, having one of its sides cut to conform to the shape of the bend in the channel and the other arranged to form a bearing for the bolster opposite the web of the channel. At the ends of the Ls a projecting tongue is cut, which is bent around the adjacent flange of the channel to make the fastening more secure and take a portion of the strain olf the'rivets. The Ls thus arranged form in themselves the tension member, the upper sides taking the main portionof Ithe pulling strain. They also, to a certain extent, perform the office of a middle support for the truss; but to make that part more rigid I provide a casting of suitableshape inserted within the4 trough-like structure formed by the channel and Ls, the description of which will be better understood, however, by reference to the accompanying drawings, in which- Figure l is a side elevation of a bolster, showing my improvements, a portion being shown in section. Fig. 2 is an end view of the same.' Fig. 3 is a section on the line 3 3 of Fig. l, and Fig. 4 is a section taken on the line 4 et of Fig. 1.

The compression member 5, as shown in Fig. l, is bent upward at its ends, so as to form a kind of bow shape, the extent of the bend being regulated by the circumstances of each particular case, but being sufficient in any event to bring the ends of the compres- Sion member up near the plane of the horizontal side of the Ls 6, which form the tension member. At the ends of the Ls a projecting tongue 7 is formed, which is bent around the fiangesS of the compression member in a manner clearly shown in Fig. 8, the

whole being secured by rivets 9. (See Fig. 2.) Along the middle, extending any required distance either side of the center, I arrange a cross-piece l0 to stiffen the sides or Ls 6 against lateral displacement. This cross-piece I prefer to make of a channel shape, arranged as shown, so that the top of the whole bolster will present a smooth and even surface, the rivets ll passing through the anges of the channel; butaplate or other equivalent form could be substituted for this, if desired, by placing the same on top of the two Ls and riveting it down; but this construction is open to the objection that it would leave projections on the upper surfaoe,which might interfere with the ready attachment of the superstructure. Within the center of the whole I place a casting or a series of castings, as preferred, to afford a stronger support for the center plate 13, which is attached to the web of the compression member 5, and

which of course may be of any shape desired,

I-Iaving thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. In a bolster for cars, the combination with a bow-shaped compression member, of a combined tension member and middle support, comprising two commercial rolled strips attached to the side edges of said compression member in a manner substantially as shown and described.

2. In a bolster for cars, the combination with a bow-shaped compression member, of a .combined tension member and middle support, comprising two commercial rolled strips having tongues formed on their ends, said tongues being bent around the ends of said compression member, substantially as described.

3. In a bolster for cars, the combination with a bow-shaped compression member having flanges turned toward the inside of the IOO bow, of a combined tension member and mid'- dle support,co1nprising two commercial rolled dle support,4 eom'prising two strips attached strips attached to said ilanges,4 sa'dstrips beto the side edges of said compression meming eut to conform to the bend of the bow of ber, and having tongues on their ends bent the oompressionmember, and having tongues 5 around the flanges of said compression memon their ends bent around the compression- 15 ber, substantially as described. A member flanges, substantially as described. 4. In a bolster for oars, the combination CARL E. BAUER.

with a bow-shaped compression member,-hav Vitnesses:

ing flanges turned toward the inside of the XVM. V. HENRY,

1o bow, of a combined tension member and mid- PAUL SYNNESTVEDT. 

